Means for dipping asphalt shingles



Oct. 1,,1935. E. GOODWIN MEANS FOR DIPPING ASPHALT SHINGLES Filed Sept. 5, 1933 .Er'nesi Good-win 4. 3

Patented on. 1, 1935 PATENT OFFICE 1 mans roa mine asrm'r snmouzs Ernest Goodwin, Brantford, 01mins, cm,

assignor to Brantford Roofing Company, Liniitcd Brantford, Ontario, Canada Application September 5, ms, Serial No. scam 1 Claims. (01. 91-46) The principal objects of this invention are to simplify the operation of dipping fabricated felt shingles or siding strips in anasphalt solution,

and to provide a means which will ensure the immersion of the shingles or strips to a uniform depth, irrespective of the quantity of the hot asphalt in the dipping tank, and whereby shingles or siding strips of. uniform quality will be produced.

A further important object is to provide an apparatus for the dipping of shingles which will be capable ofready adjustment to enable the dipping of the shingles to varying depths.

The principal feature of the invention consists in the novel provision of a float member supported upon the body of dipping material presenting adjustable guides for limiting the depth of immersion of the shingles or other article to be coated, irrespective of the volume of such material in the tank,'such guides comprising thin supporting members extending across an opening in the float. I I

In the accompanying drawing, Figure 1 is a plan view of a dipping tank equipped with my improved gauging device.

Figure 2 is alongitudinal mid-sectional view through the line 2-4 of Figure 1.

Figure 3 is a cross sectional view through the line 3-3 of Figure 1.

Figure 4 is an enlarged sectional detail through a portion of the tank and float showing the adjustable arrangement of the guide.

In the manufacture of asphalt shingles and siding slates, it is customary to fabricate the felt strips by the securing together of numerous thicknesses of felt or fabric sheets and these are I cut to the desired shape and size.

It is customary then to dipa portion of the coat the weather portion of the shingle or siding strip with a weather-resisting material and also to effect the thickening of the shingle butt, and also to provide a base for a crushed stone or other granular coating which is frequently applied.

The dipping tanks in which such shingles or strips are immersed have been equipped with suitable guide means to limit the depth of immersion, but such depth varies in accordance with the quantity of material in the tank, and though this is replenished from time to time, there is nevertheless a constant variation and it is to overcome this variation that the present invention has been devised.

According to the present invention it is proposed to furnish within the asphalt holding tank I. a float device 2 in the form of an open frame and it'is of course. preferably of rectan gular form.

The float member 2 is preferably of hollow or 5' tubular construction, the tubes being preferably of a rectangular formation. They may be mitered at the comers, or the comers may be formed by square butted joints, the ends of the tubes forming the sides 3 and end members I beingsealed. Such a float is extremely light in weight.

Air vents 5 which are preferably in the form of short lengths of tubing are secured to the float 2 and extend upwardly therefrom and form vents l5 a to the interior of the sealed compartments formed within the float so that the air within the float may be permitted to expand freely without stress upon the float structure when the float'is sub- ,iected to the heat of the molten asphalt or other each being in vertical alignment with the brackets 30.

6 and also provided with a circular hole in the horizontal member thereof in alignment with the hole in the bracket 6.

Threaded studs 8 are inserted through the holes in the brackets 6 and I, the upper ends thereof being threaded and they are supported by the nuts 9 which rest on the top bracket 6.

The lower ends of the studs 8 are provided with horizontal holes Ill and stiif wire rods ii are inserted therein and extend across the float from side to side.

'Any desirable number of these rods I l with their supporting studs and brackets may be arranged for the supporting of the goods that are to be dipped.

In practice the tank i is filled to a desirable level with a heated asphalt, tar or other solution into which it is desired to dip the shingles or other articles.

The float 2 rests upon the surface and supports the cross rods Ii in a desirable position, either slightly above or below the surface of the dipping material and their position can be very easily and quickly changed by turning the nuts 9 on the studs 8 to raise or lower the same.

This arrangement permits the rods being adjusted to any desirable relative depth.

The goods to be dipped are usually notched and it is intended that the rods ll shall register with the notches in the strip to be dipped so that the bottom of the notch willcome in contact with the rod and limit the "depth of immersion and this adjustable provision enables the rods being arranged so that the strip will not 'be immersed to the top of the notch, or so that it will immerse the strip over the notch, as may be desired.

When the guide rods II are below the surface of the dipping solution they are of course out of the event of the float frame becoming warped and one corner or side being higher than the other the stud supporting the guide rods can be adjusted to keep the'dip line of the shingle straight with the edge.

It will be understood that the gauge rods and their supporting brackets may be placed in any desirable arrangement on the float. Further, it will be appreciated that while the float is preferably formed of metal arranged in the form of a sealed casing, other material may be used and even cork or wood suitably protected to keep it from absorbing the dipping fluid might serve as an effective floating medium without departing from the spirit of the invention, which is to provide gauging means for regulating the depth for dipping sheet materials regulated by the relation to the surface of the material irrespective of its depth.

What I claim as my invention is:--

1. Means for dipping shingles, comprising a tank a float of rectangular form within said tank having a rectangular opening therethrough unobstructed'between the ends and giving access to the dipping. material, a plurality of rods extending across said openings at spaced intervals below the surface of the dipping material, and vertically adjustable means supporting the ends of said rods from said float.

2. Means for dipping shingles, comprising a float of rectangular form having a rectangular opening therethrough, a plurality of rods extending across said opening at spaced intervals.

brackets mounted on said float and extending 'over the sides of the opening therein, threaded studs extending through said brackets and supporting the ends of said rods, and nuts threaded on said studs and engaging said brackets to support the studs and the rods carried thereby in adjusted positions.

3. Means for dipping shingles, comprising a float formed of a tubular structure adapted to float upon the dipping solution and presenting an unobstructed dippingarea, said float having air vents in the top, brackets secured to the side members of said float and projecting inwardly therefrom, threaded studs having nuts thereon adjustably mounted in said brackets, said studs 6 having holes in the lower ends, and wire rods secured in they holes in said studs and extending across the float member.

4'. As a means for facilitating the consecutively uniform treatment of shingles with a fluid 10 compound for a predetermined portion of their width only extending inwardly from an edge thereof, a buoyant gauge member to float on he fluid compound, and spaced gauge means supported by the float at a" constant predeter- 15 mined level in respect to the surface level of the fluid compound for supporting contact with said shingle at a plurality of spaced points to thereby accurately and uniformly gauge the depth of partial immersion of the shingles.

5. As a means for facilitating the consecutiveuniform treatment of the notched edge portion of shingle strips with a fluid compound for a predetermined portion of their width only ex, tending inwardly from the. notched edge, a float 25 ,member adapted to float on the fluid compound,

and a series of guides supported by said float at a predetermined constantly uniform level with respect to the surface level of the fluid compound and spaced apart a distance correspond- 30 gles for a predetermined uniform portion only of the width thereofv with a fluid compound the depth of which is subject to change, a buoyant gauge structure floating on said treating material and presenting a bottoming contact for 40 the said shingle strip at spaced points in a plane parallel with the surface of the treating material to thereby uniformly limit the submergence of the shingle stripto an area of uniform width extending from end to end thereof parallel with 5 the lower edge.

7. As a means for uniformly dip-treating shingles for a portion only of their width, a tank for containing the dipping material in fluid form,

a float presenting an unobstructed open dipping area to permit free entry of the shingle edgewise into the dipping material, and a plurality of bottoming stops buoyantly supported by said float at a continuously constant depth below the surface of the said open dipping area of the dipping material for positioning stop engagement with the shingle when the latter has been only partially submerged, said bottom stops being adjustably associated with said float for the purpose of controlling their depth relation go to the surface of the dipping material.

GOODWIN. 

